<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片 -->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <!-- 添加用户功能 -->
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户表单 -->
      <el-table :data="userList" style="width: 100%" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStatusChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <!-- 操作栏 -->
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改用户功能 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="mini"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 由于有slot-scope="scope"，因此scope.row.id可以得到当前行的id信息 -->
            <!-- 删除用户功能 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              @click="removeUser(scope.row.id)"
            ></el-button>
            <!-- 分配用户功能 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="mini"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页布局 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
      <!-- 添加用户对话框 -->
      <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <!-- label-width是左边的文本宽度 -->
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="dialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 修改用户对话框 -->
      <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed"
      >
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
          <!-- label-width是左边的文本宽度 -->
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 分配角色对话框 -->
      <el-dialog
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%"
        @close="setRoleDialogClosed"
      >
        <div>
          <p>当前的用户：{{userinfo.username}}</p>
          <p>当前的角色：{{userinfo.role_name}}</p>
          <p>
            分配新角色:
            <el-select v-model="selectedRoleId" placeholder="请选择">
              <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id"
              >
                <!-- :value="item.id"能使得v-model="selectedRoleId"双向数据绑定的是一个id值而不是一个字符串
                :label="item.roleName"指定显示的是哪个值-->
              </el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoleDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>
<script>
export default {
  data() {
    //自定义校验规则
    var checkEmail = (rule, value, cb) => {
      const regEail = /^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/
      if (regEail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法邮箱'))
    }
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^[1][3,4,5,7,8][0-9]{9}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法手机号'))
    }
    return {
      queryInfo: {
        //查询参数
        query: '',
        //当前的页数
        pagenum: 1,
        //每页显示条数
        pagesize: 2
      },
      //get得到的users的数据存到userList
      userList: [],
      //get得到的users的数据的总记录数存到total
      total: 0,
      //存储分配角色时，所点击的当前行的用户信息
      userinfo: {},
      //存储可分配的角色数据
      rolesList: {},
      //存储分配角色对话框中的双向绑定角色id数据
      selectedRoleId: '',
      // 添加用户对话框的隐藏与显示
      addDialogVisible: false,
      // 编辑用户对话框的隐藏与显示
      editDialogVisible: false,
      //将addForm的数据post提交到users上去
      setRoleDialogVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      //点击触发put，通过（users/:id）将editForm中的数据覆盖当前行的数据并提交，实现修改数据的功能
      editForm: {},
      //添加用户的校验规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      //修改用户的校验规则
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    //获取用户数据
    async getUserList() {
      const { data: res } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.userList = res.data.users
      this.total = res.data.total
    },
    //pageSize 改变时会触发每页条数的改变
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    //pagenum 改变时会触发当前页的改变
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //修改用户状态
    async userStatusChanged(userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      // console.log(res);
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更改用户状态失败！')
      }
      this.$message.success('更改用户状态成功！')
    },
    //点击"取消"重置添加用户对话框的数据
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    //点击"确定"，将整个对话框的内容进行校验，如果校验失败就返回，如果校验成功就添加用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201)
          return this.$message.error('用户添加失败！')
        this.$message.success('用户添加成功！')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    //修改用户
    async showEditDialog(id) {
      this.editDialogVisible = true
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status !== 200) return this.$message.error('查询用户失败！')
      this.editForm = res.data
    },
    //点击"取消"重置修改用户对话框的数据
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    //点击"确定"，将整个对话框的内容进行校验，如果校验失败就返回，如果校验成功就编辑成功上传数据
    editUser() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put(
          'users/' + this.editForm.id,
          {
            mobile: this.editForm.mobile,
            email: this.editForm.email
          }
        )
        if (res.meta.status !== 200)
          return this.$message.error('更新用户信息失败！')
        //关闭对话框
        this.editDialogVisible = false
        //刷新数据
        this.getUserList()
        //提示修改成功
        this.$message.success('更新用户信息成功！')
      })
    },
    //删除用户
    async removeUser(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      ).catch(err => err)
      // console.log(confirmResult);
      if (confirmResult != 'confirm') return this.$message.info('已取消删除！')
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败！')
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
    //点击分配角色将传来的当前行的用户信息（userinfo）保存到userinfo对象中,通过get请求将得到的角色列表数据存到rolesList对象中,并显示分配角色的对话框
    async setRole(userinfo) {
      this.userinfo = userinfo
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200)
        return this.$message.error('获取角色数据失败！')
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    //分配角色
    async saveRoleInfo() {
      if (!this.selectedRoleId)
        return this.$message.error('请选择要分配的角色！')
      const { data: res } = await this.$http.put(
        `users/${this.userinfo.id}/role`,
        {
          rid: this.selectedRoleId
        }
      )
      if (res.meta.status !== 200) return this.$message.error('更新角色失败！')
      this.$message.success('更新角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    //关闭对话框时重置对话框的数据
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.rolesList = {}
    }
  }
}
</script>
<style lang="less" scoped>
</style>


